FCC plans to expand wireless capacity

WASHINGTON — A new flavor of Wi-Fi, with longer range and wall-piercing power, could show up in wireless gadgets a year from now if the Federal Communications Commission works out the last details of new spectrum rules that have been long in the making.
Nearly two years ago, the FCC voted to open up the airwaves between broadcast TV channels — so-called "white spaces" — for wireless broadband connections that would work like Wi-Fi on steroids. But wrangling over key technical details, including concerns about interference with TV signals and wireless microphones, has prevented exploitation of these spaces.

On Sept. 23, the FCC plans to vote on rules meant to resolve those issues. FCC Chairman Julius Genachowski predicts that electronics makers will jump at this "super Wi-Fi" technology, as the agency calls it, and make it just as popular as conventional Wi-Fi.

"We're hoping history will repeat itself," Genachowski said. "White spaces are a big deal for consumers and for investment and innovation."

The commission's plan would make white spaces available free, without specific permission, just as it already does for Wi-Fi and Bluetooth.

Last year's transition from analog to digital television broadcasting freed up enough spectrum to make this possible, but the plan faced serious opposition from television broadcasters worried that their signals could be disrupted. Wireless microphone manufacturers and users — including churches, theaters, karaoke bars and all types of performers — also raised concerns about interference.

Vacant frequencies

To address these issues, the FCC has been working with broadcasters and white-spaces proponents to map TV channels across the country. The current FCC plan would require installers to configure white-spaces devices to use a frequency that's vacant in their area — a white space. Alternatively, the devices themselves could figure out their location using such technologies as GPS; a database would then help the devices figure out the right frequencies for their area.

In addition, the agency hopes to set aside at least two channels for minor users of wireless microphones. And it plans to put big wireless microphone users, such as Broadway theaters and sports leagues, in the database, so devices would know to avoid their airwaves.

The upcoming FCC vote is a welcome development for some of the country's biggest technology companies, including Google Inc., Microsoft Corp. and Dell Inc. The tech industry hopes that white-spaces networks will create a multibillion-dollar market for advanced wireless devices, including laptops, set-top boxes and smart phones.

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